Positive Seal Valves for Reliable Material Control
Positive Seal Valves feature a fully sealed and gasketed design with self-adjusting seals to ensure precise and reliable control of material flow. Maintenance is simplified with a large rear access cover that allows disc replacement without removing the valve from the process line, reducing downtime and labor costs.
Key Features:
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Fully sealed and gasketed design suitable for pressures up to 14.9 psi
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Tapered disc and seat for optimum self-adjusting sealing from upstream to downstream
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Cast urethane disc compresses when closed for use in liquid and gas applications
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Pneumatic or hydraulic actuation provides constant load on sealing surfaces
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Stackable design allows for creating an enhanced “double dump valve” configuration
Typical Applications:
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Positive shut-off for aerated products beneath silos and fluidized conveyors
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Dust collector/cyclone discharges and pneumatic conveying
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Replacement for rotary valves/airlocks where improved sealing and low maintenance are critical
Optional Features:
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Polymer or metallic discs for special applications or elevated temperatures
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Outboard bearings with adjustable shaft packing for pressurized systems
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Spool or “dutchman” installation between two valves to increase throughput
Engineered for high performance, low maintenance, and precise material control, these valves are ideal for a wide range of industrial bulk handling applications.
